CN114986709A

CN114986709A - High-precision automatic concrete weighing and stirring system

Info

Publication number: CN114986709A
Application number: CN202210758917.2A
Authority: CN
Inventors: 陈楚滨
Original assignee: Guangzhou Changze New Building Materials Co ltd
Current assignee: Guangzhou Changze New Building Materials Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-02
Anticipated expiration: 2042-06-30
Also published as: CN114986709B

Abstract

The utility model relates to an automatic stirring system is weighed to high accuracy, relate to the technical field of concrete production, which comprises a frame, locate the batching storage system who arranges in proper order from top to bottom in the frame, batching weighing system, mixing system and control system, batching storage system is including setting up the stone material storehouse at the frame top side by side, sand silo and cement silo, the stone material storehouse, the blanking mouth department of sand silo and cement silo all is connected with corrugated metal pipe, corrugated metal pipe is respectively from the stone material storehouse, the blanking mouth of sand silo and cement silo is close to batching weighing system and extends, the stone material storehouse, the blanking mouth department of sand silo and cement silo still all is equipped with flow control valve, flow control valve and control system electric connection, be equipped with the drive assembly who is used for driving corrugated metal pipe to go up and down in the frame. This application has and reduces the concrete and weighs the error, improves the quality of concrete.

Description

High-precision automatic concrete weighing and stirring system

Technical Field

The application relates to the technical field of concrete production, in particular to a high-precision automatic concrete weighing and stirring system.

Background

Concrete is one of the most commonly used building materials, and is used in twice the total amount of steel, wood, plastic and aluminum in tons throughout the world, and is mainly a composite material formed by cementing fine and coarse aggregates and hardening them for a certain period of time.

The concrete production mixes coarse aggregate, fine aggregate and cement and water and produces together, generally add each kind of material into same weighing hopper in one by one according to the ratio according to the mode of adding up the weighing, when the weight of weighing reaches the setting value, the blanking mouth of storage silo is closed the valve by the control of controller and is stopped the blanking and accomplish and weigh, then open the discharge gate of weighing hopper and concentrate the batching that drops and weigh in a stirring hopper and stir.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the certain distance in storage silo and weighing hopper interval for there is the difference in height between storage silo and the weighing hopper, when the valve of storage silo closed and stops the blanking, probably partial batching still can continue to drop in the weighing hopper, makes to have great error between the weight of actually weighing in the weighing hopper and the former setting value, leads to the ratio of each batching to appear the deviation, thereby influences the quality of concrete, needs further improvement to this.

Disclosure of Invention

In order to improve and to have the error between the weight that actually weighs in the weighing hopper and the former setting value, influence the problem of concrete quality, this application provides a mixing system is weighed to automatic concrete of high accuracy.

The application provides a pair of automatic concrete of high accuracy weighs mixing system adopts following technical scheme:

a high-precision automatic concrete weighing and stirring system comprises a rack, a batching storage system, a batching weighing system, a stirring system and a control system which are sequentially arranged on the rack from top to bottom, wherein the batching storage system comprises a stone bin, a sand bin and a cement bin which are arranged at the top of the rack side by side, metal corrugated pipes are connected at blanking ports of the stone bin, the sand bin and the cement bin, the metal corrugated pipes extend from blanking ports of the stone bin, the sand bin and the cement bin close to the batching weighing system respectively, flow regulating valves are arranged at the blanking ports of the stone bin, the sand bin and the cement bin respectively, the flow regulating valves are electrically connected with the control system, and a driving component for driving the metal corrugated pipes to ascend and descend is arranged on the rack, the rack is provided with a support horizontally below the stone bin, the sand bin and the cement bin, the support is provided with a plurality of waist-shaped holes for the metal corrugated pipes to pass through, and the driving assembly is arranged on the support.

By adopting the technical scheme, the metal corrugated pipe and the driving assembly are arranged, when each ingredient of concrete is weighed, the metal corrugated pipe is driven by the driving assembly to be downwards close to the weighing system, so that when each ingredient is fed into the ingredient weighing system, the height between a feeding port of the ingredient and the weighing system can be effectively reduced, then the metal corrugated pipe is driven by the driving assembly to continuously rise along with the feeding process, the minimum distance is always kept between the metal corrugated pipe and the weighing system, and the condition that the proportion of each ingredient is deviated due to height errors is effectively reduced;

and the weighing system can transmit the weighed data to the control system at any time, when the control system receives a signal and senses that the actual weighed weight is close to the originally set value, the control system sends a signal for controlling the flow velocity of the flow regulating valve, so that the blanking of the metal corrugated pipe is slower, the final actual weighed weight error is minimum, the proportioning deviation of each ingredient is effectively reduced, the concrete ingredient precision is ensured, and the quality of the concrete is improved.

Optionally, the driving assembly comprises a connecting plate, a first rotating wheel, a second rotating wheel and an electric push rod, the two sides of the top of the support are provided with struts, one side of each strut, which is close to each other, is perpendicular to the struts, the two struts are connected with a connecting rod in a rotating manner, the first rotating wheel and the second rotating wheel are sequentially and fixedly arranged on the connecting rod, the connecting plate is sleeved on the metal corrugated pipes, the connecting plate is close to the pipe orifices of the metal corrugated pipes, the two sides of the top of the support are located behind the first rotating wheel and are connected with a first driving block in a sliding manner, the two sides of the connecting plate are vertically provided with a second driving block, a first pull rope is wound on the first rotating wheel, a second pull rope is wound on the second rotating wheel, one end of the first pull rope, which is far away from the first rotating wheel, is fixedly connected with the first driving block, the second stay cord is kept away from the one end that the second rotated the wheel pass waist shape hole with second drive block fixed connection, electric putter locates on the support with first drive block is kept away from the one end fixed connection of first rotation wheel.

By adopting the technical scheme, the electric push rod is far away from the first rotating wheel to pull the first driving block, the first driving block can pull the first pull rope to drive the first rotating wheel to rotate towards the electric push rod, then the second rotating wheel and the first rotating wheel rotate in the same direction, and the second pull rope can pull the second driving block to move upwards under the driving of the second rotating wheel, so that the connecting plate also moves upwards;

use the first drive block of electric putter drive to be close to first rotation wheel displacement, thereby make first rotation wheel and second rotation wheel deviate from the electric putter block and rotate, then make the downward displacement of second drive block, effectively drive the downward displacement of connecting plate, thereby can drive three corrugated metal pipe displacement simultaneously through the connecting plate, effectively realize going up and down to corrugated metal pipe, make corrugated metal pipe when using, can continuously follow the blanking process lift of batching, reduce the feed opening that the batching falls and the interval between the weighing system, avoid the condition of error appearing in the proportion of each batching, improve the quality of concrete.

Optionally, first sliders are arranged on two sides of the top of the support, a first sliding groove for sliding the first driving block is formed in each first slider, the length extending direction of each first sliding groove is consistent with that of each first slider, second sliders are perpendicularly connected to two sides of the bottom of the support, a second sliding groove for sliding the second driving block is formed in each second slider, the length extending direction of each second sliding groove is consistent with that of each second driving block, and the two ends of each first sliding groove and the two ends of each second sliding groove are closed.

Through adopting above-mentioned technical scheme, when first drive block and second drive block displacement, through restricting that first drive block slides in first spout, the second drive block slides in the second spout, effectively reduces the condition that skew appears in first drive block and second drive block when the displacement, ensures that first drive block and second drive block slide stably, makes the corrugated metal pipe also comparatively firm when going up and down then, increases the security.

Optionally, the first chute is close to one side inner wall of first rotation wheel with fixedly connected with first spring between the first drive block, the second chute is close to one side inner wall of second rotation wheel with fixedly connected with second spring between the second drive block, first spring with the motion trend of second spring is opposite.

By adopting the technical scheme, when the first driving block is far away from the first rotating wheel to displace, the first spring is in a stretching state, and the second spring is in a compressing state; when first drive block was close to first pivot wheel displacement, first spring became compression state by the tensile state, and the second spring becomes tensile state by the compression state to in-process when the metal bellows goes up and down, the user state of first spring and second spring also is in constantly changing state, can play the cushioning effect, makes first drive block and second drive block reduce the impact at the in-process that slides, increases stability.

Optionally, the batching and weighing system includes the weighing hopper and locates load sensor and blanking valve on the weighing hopper, the load sensor with the blanking valve all with control system electric connection, the weighing hopper corresponds the stone storage bin sand storage bin and cement bin is provided with threely, the blanking pipe has been seted up to the lateral wall of weighing hopper, the blanking pipe with the blanking mouth department of weighing hopper all is equipped with the blanking valve, be located in the frame the below of blanking pipe corresponds a plurality ofly the weighing hopper is equipped with a plurality of hoppers that connect, the pipe diameter of blanking mouth is less than the internal diameter of the blanking mouth of weighing hopper.

By adopting the technical scheme, the batching falling from the metal corrugated pipe can be effectively received by the weighing hopper, then the weight in the weighing hopper is detected by the load sensor, and the detected actual weight is transmitted to the control system in real time, so that the weighing weight of the batching can be monitored at any time; if actual weight in the weighing hopper is less than when former setting value, can continue to add the batching in the weighing hopper, the error of the weight of weighing until the reality reaches the minimum, if when actual weight is greater than former setting value, can control the blanking pipe and open, unnecessary batching can drop in connecing the hopper, then can monitor the actual weight of batching at any time to can finely tune, effectively reduce the proportion of batching and appear the deviation.

Optionally, one end of the metal corrugated pipe extends into the measuring hopper, and one end of the metal corrugated pipe extending into the measuring hopper is connected with a buffer pipe, and the buffer pipe is inclined to the metal corrugated pipe.

Through adopting above-mentioned technical scheme, the buffer tube of setting can increase the buffering to the batching when the blanking through the buffer tube, reduces the impact to the weighing hopper for the data can be more accurate when weighing by the weighing hopper.

Optionally, a stop valve is arranged at the orifice of the buffer tube, and the stop valve is electrically connected with the control system.

Through adopting above-mentioned technical scheme, the stop valve of setting when weight in the weighing hopper reaches former setting value, can close the mouth of pipe of buffer tube through the stop valve for in the metal bellows still effectively hold back in the metal bellows for the batching that drops, avoid directly dropping in the weighing hopper, influence the condition of the ratio of each batching, effectively improve the concrete quality.

Optionally, the support is located adjacently and is equipped with the bull stick between the corrugated metal pipe, the bull stick rotate connect in on the inner wall in waist shape hole, the rocker has set firmly on the outer wall of bull stick, the rocker passes waist shape hole is close to the weighing hopper extends, just the rocker is close to the one end perpendicular to of weighing hopper the rocker has set firmly and has strikeed the piece, step motor has set firmly on the support, step motor's output shaft with the arbitrary one end of bull stick links to each other.

Through adopting above-mentioned technical scheme, through starting step motor, step motor's output shaft can drive the bull stick just reversal, then under the drive of bull stick, the rocker also follows the rotation to make to strike the piece and strike the weighing hopper about can, make the part remain the batching in the weighing hopper effectively drop, reduce the ratio deviation of each batching, ensure concrete quality.

Optionally, the side wall of the measuring hopper is fixedly provided with a butt block matched with the knocking block, and the butt block is provided with an arc-shaped groove matched with the knocking block

Through adopting above-mentioned technical scheme, the butt piece of setting can reduce and strike the piece to the wearing and tearing of weighing hopper, and the arc wall can increase the atress area who strikes piece and butt piece for strike striking of piece better, ensure that the batching in the weighing hopper can all drop in mixing system, improve the concrete quality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the metal corrugated pipe is arranged, so that the distance between the batching blanking port and the metering hopper can be reduced, the metal corrugated pipe can rise along with the blanking process under the driving of the driving assembly, and the distance between the metal corrugated pipe and the metering hopper is kept to be minimum all the time, so that the situation that the height difference causes a large error between the actually weighed weight in the metering hopper and an original set value can be effectively avoided, the proportioning precision of each batching is effectively ensured, and the quality of concrete is improved;

2. the blanking pipe that sets up with connect the hopper, when the weighing weight of reality is greater than former setting value in the weighing hopper, can discharge unnecessary batching through the blanking pipe to drop in connecing the hopper, effectively adjust the actual weight of weighing hopper, reduce the condition of error.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic overall structure diagram of an embodiment of the present application, which is intended to show a blanking pipe and a receiving hopper;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Reference numerals are as follows: 1. a frame; 10. a ingredient storage system; 100. a stone silo; 101. a sand silo; 102. a cement silo; 11. a batching and weighing system; 110. a measuring hopper; 1100. a blanking pipe; 1101. a receiving hopper; 111. a load sensor; 112. a discharge valve; 12. a stirring system; 120. a stirring box; 1200. a sealing cover; 1201. a hydraulic cylinder; 121. a stirring rod; 122. a servo motor; 123. a water inlet pipe; 1230. a water inlet valve; 13. a control system; 2. a metal bellows; 20. a flow regulating valve; 21. a buffer tube; 22. a stop valve; 3. a support; 30. a waist-shaped hole; 4. a connecting plate; 40. a first rotating wheel; 400. a first pull cord; 41. a second rotating wheel; 410. a second pull cord; 42. an electric push rod; 5. a pillar; 50. a strut; 51. a connecting rod; 6. a first driving block; 60. a first slider; 61. a first chute; 62. a first spring; 7. a second driving block; 70. a second slider; 71. a second chute; 72. a second spring; 8. a rotating rod; 80. a rocker; 81. knocking the block; 82. a stepping motor; 83. a butting block; 84. an arc-shaped slot; 9. and (7) anchor bolts.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a high-precision automatic concrete weighing and stirring system, and with reference to fig. 1, the system comprises a rack 1, a batching storage system 10, a batching weighing system 11, a stirring system 12 and a control system 13 which are arranged on the rack 1 from top to bottom in sequence, wherein in the embodiment, the rack 1 can be fixed on the ground through foundation bolts 9, and the batching storage system 10 comprises a stone bin 100, a sand bin 101 and a cement bin 102 which are arranged at the top of the rack 1 side by side; aggregate storehouse 100, the blanking mouth department of sand silo 101 and cement silo 102 all is connected with corrugated metal pipe 2, corrugated metal pipe 2 is followed aggregate storehouse 100 respectively, the blanking mouth of sand silo 101 and cement silo 102 is close to batching weighing system 11 and extends, aggregate storehouse 100, the blanking mouth department of sand silo 101 and cement silo 102 still all is equipped with flow control valve 20, flow control valve 20 and 13 electric connection of control system, be equipped with the drive assembly that can drive corrugated metal pipe 2 and go up and down in the frame 1, lie in aggregate storehouse 100 in the frame 1, the below level of sand silo 101 and cement silo 102 is equipped with support 3, set up the waist shape hole 30 that supplies a plurality of corrugated metal pipe 2 to pass on the support 3, drive assembly locates on the support 3.

When weighing each batching, earlier extend to batching weighing system 11 department through drive assembly drive corrugated metal pipe 2, then flow control valve 20 on control system 13 synchro control stone storehouse 100 and sand feed bin 101 and the cement feed bin 102 is opened, each batching begins through corrugated metal pipe 2 toward batching weighing system 11 in the blanking, along with continuous blanking, drive assembly also synchro drive corrugated metal pipe 2 rises gradually, make corrugated metal pipe 2's blanking mouth can remain throughout and batching weighing system 11 between the minimum interval of interval, effectively avoid the weighing error that high error brought, effectively ensure the weighing precision of each batching, improve the quality of concrete.

When each weighed batching weight is close to the original set value, batching and weighing system 11 can transmit the detected data to control system 13, control system 13 receives the size of regulation and control flow control valve 20 after the signal, make the blanking speed of stone storage bin 100 and sand storage bin 101 and cement storage bin 102 slow, until each batching weighs the error minimum of actual weight and original set value, in time close flow control valve 20 and stop the blanking, thereby can further ensure the ratio of each batching, effectively improve the ratio precision of each batching, whole automation operation, the weighing of each batching is accomplished to high accuracy, and the concrete quality is improved.

Referring to fig. 1 and 2, in the embodiment, the batching and weighing system 11 includes a weighing hopper 110, three load sensors 111 and three discharge valves 112, which are disposed on the weighing hopper 110, the weighing hopper 110 is disposed corresponding to the stone bin 100, the sand bin 101 and the cement bin 102, and the load sensors 111 and the discharge valves 112 are both electrically connected to the control system 13. In order to further improve the weighing precision of each ingredient, a blanking pipe 1100 is further arranged on the side wall of the measuring hopper 110, and blanking valves 112 are arranged at blanking ports of the blanking pipe 1100 and the measuring hopper 110;

when the control system 13 detects that the weight in the metering hopper 110 is greater than the original set value, the blanking on the blanking pipe 1100 can be controlled to be opened, and the redundant ingredients are discharged from the blanking pipe 1100, until the error between the weight in the metering hopper 110 and the original set value is minimum, the blanking valve 112 is controlled to be closed in time, and the pipe diameter of the blanking port is smaller than the inner diameter of the blanking port of the metering hopper 110, so that the control is facilitated when the redundant ingredients are discharged, the deviation is avoided, and the proportioning precision of each ingredient is ensured; in addition, a plurality of receiving hoppers 1101 are arranged below the blanking pipe 1100 on the rack 1 corresponding to the plurality of weighing hoppers 110, discharged redundant ingredients can be effectively received by the receiving hoppers 1101, and then the ingredients in the receiving hoppers 1101 can be conveyed into the ingredient storage system 10 again through the conveying device, so that resource waste is avoided.

In this embodiment, in order to further improve and weigh the precision, 2 one end of corrugated metal pipe with setting extends to in the weighing hopper 110, and corrugated metal pipe 2 extends to the one end in the weighing hopper 110 and is connected with buffer tube 21, buffer tube 21 inclines in corrugated metal pipe 2 and sets up, thereby can reduce the impact to weighing hopper 110 through buffer tube 21, make weighing hopper 110 can be more stable when weighing the batching, reduce the interference to weighing, improve and weigh the precision, and still be equipped with stop valve 22 in buffer tube 21's mouth of pipe department, stop valve 22 and control system 13 electric connection, when the weight of weighing reaches former setting value in the weighing hopper 110, control system 13 in time controls stop valve 22 and closes, make the unnecessary batching of effectively detaining in corrugated metal pipe 2, improve the ratio precision of each batching.

Referring to fig. 1 and 2, in this embodiment, to further avoid the residual ingredients in each weighing hopper 110, a rotating rod 8 is disposed between adjacent metal corrugated pipes 2 on the bracket 3, the rotating rod 8 is rotatably connected to the inner wall of the waist-shaped hole 30, and a rocker 80 is fixedly disposed on the outer wall of the rotating rod 8; the rocker 80 passes through the waist-shaped hole 30 and extends close to the weighing hopper 110, and in order to avoid the rocker 80 from interfering with the connecting plate 4 when extending downwards, a through hole for the rocker 80 to pass through can be formed in the connecting plate 4. In addition, the one end of the rocker 80 close to the measuring hopper 110 is vertically provided with the knocking block 81 fixedly together with the rocker 80, the side wall of the measuring hopper 110 is welded with the abutting block 83 matched with the knocking block 81, the abutting block 83 is provided with the arc-shaped groove 84 matched with the knocking block 81, the support 3 is provided with the stepping motor 82 fixedly, and the output shaft of the stepping motor 82 is connected with any one end of the rotating rod 8.

During the use, start step motor 82, step motor 82 can drive bull stick 8 and rotate, then make rocker 80 also and then rotate, and step motor 82's turned angle adjusts in advance, when rocker 80 rotates, strike piece 81 and can effectively strike butt piece 83, arc wall 84 on the butt piece 83 and strike piece 81 and contact each other, make the atress area of butt piece 83 increase, thereby effectively make the batching of remaining in weighing hopper 110 drop from weighing hopper 110's blanking mouth after receiving vibrations, and the easier adhesion of sand material remains in weighing hopper 110, consequently set up bull stick 8 between adjacent corrugated metal pipe 2 and can make the weighing hopper 110 that stores the sand material receive two strikes the beating of piece 81, further reduce the error that appears of batching, improve the concrete quality.

Referring to fig. 1 and 2, in this embodiment, the stirring system 12 is provided and includes a stirring tank 120, a stirring rod 121 disposed in the stirring tank 120, a servo motor 122 for driving the stirring rod 121 to rotate, and a water inlet pipe 123 disposed on the frame 1, the water inlet pipe 123 is connected to a water source for adding water into the stirring tank 120, the water inlet pipe 123 is further provided with a water inlet valve 1230, the water inlet valve 1230 is electrically connected with the control system 13, the weighed falling ingredients of each metering hopper 110 can directly fall into the stirring box 120, the control system 13 controls the water inlet pipe 123 to proportionally add water, the water inlet valve 1230 is automatically closed after sufficient water is added, the operation is automatic, the sealing cover 1200 is rotatably connected to the discharging opening of the stirring box 120, the frame 1 is provided with a hydraulic cylinder 1201, the piston rod of the hydraulic cylinder 1201 is connected with the sealing cover 1200, and the sealing cover 1200 is driven to rotate by the hydraulic cylinder 1201 to open the discharging opening of the stirring box 120 during discharging.

Referring to fig. 1 and 3, in the present embodiment, the driving assembly includes a connecting plate 4, a first rotating wheel 40, a second rotating wheel 41 and an electric push rod 42, pillars 5 are disposed on two sides of the top of the bracket 3, a supporting rod 50 is disposed on one side of the two pillars 5, which is close to each other, perpendicular to the pillars 5, a connecting rod 51 is rotatably connected to the two supporting rods 50, the first rotating wheel 40 and the second rotating wheel 41 are sequentially and fixedly disposed on the connecting rod 51, so that the first rotating wheel 40 and the second rotating wheel 41 can rotate synchronously, the connecting plate 4 is sleeved on the plurality of metal corrugated tubes 2, the metal corrugated tubes 2 are fixedly connected to the connecting plate 4, and the connecting plate 4 is close to the pipe orifices of the plurality of metal corrugated tubes 2; the top both sides of support 3 are located the rear sliding connection of first rotation wheel 40 and have first drive block 6, 4 bottom both sides perpendicular to support 3 of connecting plate have set firmly second drive block 7, it has first stay cord 400 to coil on the first rotation wheel 40, it has second stay cord 410 to coil on the second rotation wheel 41, first stay cord 400 and second stay cord 410 all set up to static rope, and the one end and the first drive block 6 fixed connection of first rotation wheel 40 are kept away from to first stay cord 400, the one end that second rotation wheel 41 was kept away from to second stay cord 410 passes waist shape hole 30 and second drive block 7 fixed connection, electric putter 42 locates on the support 3 and keeps away from the one end fixed connection of first rotation wheel 40 with first drive block 6.

When the metal bellows 2 is driven to descend into the weighing hopper 110, the electric push rod 42 is started to push the first driving block 6 towards the first rotating wheel 40, so that the second driving block 7 is close to the first rotating wheel 40 to be displaced, and the first pull rope 400 is also in a state of being wound on the first rotating wheel 40; at this time, the first rotating wheel 40 begins to rotate away from the electric push rod 42, the second rotating wheel 41 also rotates in the same direction under the driving of the first rotating wheel 40, and the first pull rope is in an unfolded state, so that the second driving block 7 can move downwards, and then the connecting plate 4 is effectively driven to move downwards, the displacement of the metal corrugated pipe 2 is effectively realized, and the distance between the blanking port of the metal corrugated pipe 2 and the measuring hopper 110 is reduced;

when beginning to weigh each batching, restart electric putter 42 and keep away from first driving block 6 of first runner 40 pulling again, first stay cord 400 is convenient for the expansion state by the coiling state, first runner 40 and second runner 41 all rotate towards electric putter 42, second stay cord 410 is started to roll up toward second runner 41 by the expansion state, second driving block 7 upwards shifts under the dragging of second stay cord 410, effectively drive connecting plate 4 upwards displacement then, make corrugated metal pipe 2 follow the blanking process of batching and continuously rise, effectively reduce the ratio error of each batching, improve and weigh the precision.

Referring to fig. 1 and 3, in this embodiment, two sides of the top of the bracket 3 are further provided with first sliding blocks 60, the first sliding blocks 60 are provided with first sliding grooves 61 for the first driving blocks 6 to slide, the length extending direction of the first sliding grooves 61 is the same as the length extending direction of the first sliding blocks 60, two sides of the bottom of the bracket 3 are vertically connected with second sliding blocks 70, the second sliding blocks 70 are provided with second sliding grooves 71 for the second driving blocks 7 to slide, the length extending direction of the second sliding grooves 71 is the same as the length extending direction of the second driving blocks 7, the first driving blocks 6 can slide along the first sliding grooves 61 when being displaced, the second driving blocks 7 can slide along the second sliding grooves 71 when being displaced, thereby effectively increasing the stability, reducing the situation that the first driving block 6 and the second driving block 7 are deviated, and the two ends of the first sliding chute 61 and the second sliding chute 71 are both closed, so that the situation that the first driving block 6 and the second driving block 7 slide down can be avoided.

Referring to fig. 1 and 3, in the present embodiment, a first spring 62 is fixedly connected between an inner wall of the first sliding chute 61 close to the first rotating wheel 40 and the first driving block 6, a second spring 72 is fixedly connected between an inner wall of the second sliding chute 71 close to the second rotating wheel 41 and the second driving block 7, and the first spring 62 and the second spring 72 have opposite moving tendencies; when the metal corrugated pipe 2 ascends, the first spring 62 is in a stretching state, the second spring 72 is in a compressing state, when the metal corrugated pipe 2 descends, the first spring 62 is in a compressing state, the second spring 72 is in a stretching state, the first spring 62 and the second spring 72 can effectively buffer the first driving block 6 and the second driving block 7, impact force of the first driving block 6 and the second driving block 7 during displacement is reduced, and the first driving block 6 and the second driving block 7 are used more stably.

The implementation principle of the high-precision automatic concrete weighing and stirring system in the embodiment of the application is as follows: when weighing each ingredient, the corrugated metal pipe 2 can be lowered into the weighing hopper 110, so that the blanking port of the corrugated metal pipe 2 is close to the bottom wall of the weighing hopper 110, when the ingredient storage system 10 begins to blank into the weighing hopper 110, the corrugated metal pipe 2 can gradually rise along with the progress of blanking, so that the height between the blanking port of each ingredient and the weighing hopper 110 can be effectively reduced, the error between the actual weighed weight of the weighing hopper 110 and the original set value can be effectively reduced, and when the weight in the weighing hopper 110 is close to the original set value, the flow rate of the ingredient can be controlled by the control system 13 to control the flow rate of the ingredient, so that the actual weighed weight can be effectively regulated and controlled when the weighing hopper 110 is weighing, the proportioning precision of each ingredient can be ensured, if the weighing hopper 110 has redundant ingredients, the redundant ingredients can be discharged through the blanking pipe 1100, and the proportioning of the ingredients can be effectively regulated and controlled, the quality of concrete is improved, the whole operation is automatic, and the precision is high.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mixing system is weighed to automatic concrete of high accuracy which characterized in that: the material mixing and weighing device comprises a rack (1), and a material mixing and storing system (10), a material mixing and weighing system (11), a stirring system (12) and a control system (13) which are sequentially arranged on the rack (1) from top to bottom, wherein the material mixing and storing system (10) comprises a stone bin (100), a sand bin (101) and a cement bin (102) which are arranged at the top of the rack (1) side by side, the blanking ports of the stone bin (100), the sand bin (101) and the cement bin (102) are all connected with a metal corrugated pipe (2), the metal corrugated pipe (2) respectively extends from the stone bin (100), the sand bin (101) and the cement bin (102) close to the material mixing and weighing system (11), and the blanking ports of the stone bin (100), the sand bin (101) and the cement bin (102) are also provided with a flow regulating valve (20), flow control valve (20) with control system (13) electric connection, be equipped with on frame (1) and be used for the drive assembly that corrugated metal pipe (2) go up and down, lie in on frame (1) stone storehouse (100) sand silo (101) and the below level of cement silo (102) is equipped with support (3), it is a plurality of to have seted up the confession on support (3) waist shape hole (30) that corrugated metal pipe (2) passed, drive assembly locates on support (3).

2. The high-precision automatic concrete weighing and stirring system according to claim 1, characterized in that: the driving assembly comprises a connecting plate (4), a first rotating wheel (40), a second rotating wheel (41) and an electric push rod (42), wherein struts (5) are arranged on two sides of the top of the support (3), two struts (5) are perpendicular to one side, which is close to each other, of the struts (5) are provided with support rods (50), two connecting rods (51) are connected to the support rods (50) in a rotating mode, the first rotating wheel (40) and the second rotating wheel (41) are sequentially and fixedly arranged on the connecting rods (51), the connecting plate (4) is sleeved on the metal corrugated pipes (2), the connecting plate (4) is close to a plurality of pipe orifices of the metal corrugated pipes (2), two sides of the top of the support (3) are located behind the first rotating wheel (40) in a sliding mode and are provided with first driving blocks (6), and second driving blocks (7) are vertically arranged on two sides of the connecting plate (4), first stay cord (400) are wound on first rotation wheel (40), second stay cord (410) are wound on second rotation wheel (41), keep away from first stay cord (400) the one end of first rotation wheel (40) with first drive block (6) fixed connection, second stay cord (410) are kept away from the one end that second rotation wheel (41) was passed waist shape hole (30) with second drive block (7) fixed connection, electric putter (42) are located on support (3) with first drive block (6) are kept away from the one end fixed connection of first rotation wheel (40).

3. The high-precision automatic concrete weighing and mixing system according to claim 2, characterized in that: the utility model discloses a drive device, including support (3), first slider (60), the confession has been seted up on first slider (60) first drive block (6) gliding spout (61), the length extending direction of first spout (61) with the length extending direction of first slider (60) is unanimous, the bottom both sides of support (3) are connected with second slider (70) perpendicularly, seted up the confession on second slider (70) the gliding second spout (71) of second drive block (7), the length extending direction of second spout (71) is unanimous with the length extending direction of second drive block (7), just first spout (61) with the both ends of second spout (71) all are the setting of closing the mouth.

4. A high accuracy automated concrete weighing mixing system according to claim 3, characterized in that: first spout (61) are close to one side inner wall of first commentaries on classics driving wheel (40) with first spring (62) of fixedly connected with between first drive block (6), second spout (71) are close to one side inner wall of second commentaries on classics driving wheel (41) with fixedly connected with second spring (72) between second drive block (7), first spring (62) with the motion trend of second spring (72) is opposite.

5. The high-precision automatic concrete weighing and stirring system according to claim 1, characterized in that: batching weighing system (11) include weighing hopper (110) and locate load sensor (111) and blanking valve (112) on weighing hopper (110), load sensor (111) with blanking valve (112) all with control system (13) electric connection, weighing hopper (110) correspond stone storage bin (100) sand storage bin (101) and cement storage bin (102) are provided with threely, blanking pipe (1100) have been seted up to the lateral wall of weighing hopper (110), blanking pipe (1100) with the blanking mouth of weighing hopper (110) all is equipped with blanking valve (112), lie in on frame (1) the below of blanking pipe (1100) corresponds a plurality of weighing hopper (110) is equipped with a plurality of hoppers (1101), the pipe diameter of blanking mouth is less than the internal diameter of the blanking of weighing hopper (110).

6. The high-precision automatic concrete weighing and stirring system according to claim 5, wherein: one end of the metal corrugated pipe (2) extends into the measuring hopper (110), one end of the metal corrugated pipe (2) extending into the measuring hopper (110) is connected with a buffer pipe (21), and the buffer pipe (21) is inclined to the metal corrugated pipe (2).

7. The high-precision automatic concrete weighing and stirring system according to claim 6, wherein: and a stop valve (22) is arranged at the orifice of the buffer tube (21), and the stop valve (22) is electrically connected with the control system (13).

8. The high-precision automatic concrete weighing and stirring system according to claim 6, wherein: be located adjacently on support (3) be equipped with bull stick (8) between metal bellows (2), bull stick (8) rotate connect in on the inner wall of waist shape hole (30), rocker (80) have set firmly on the outer wall of bull stick (8), rocker (80) pass waist shape hole (30) are close to weighing hopper (110) extend, just rocker (80) are close to the one end perpendicular to of weighing hopper (110) rocker (80) have set firmly and have strikeed piece (81), step motor (82) have set firmly on support (3), the output shaft of step motor (82) with the arbitrary one end of bull stick (8) links to each other.

9. The high-precision automatic concrete weighing and mixing system according to claim 8, wherein: the side wall of the metering hopper (110) is fixedly provided with a butt joint block (83) matched with the knocking block (81), and the butt joint block (83) is provided with an arc-shaped groove (84) matched with the knocking block (81).